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rentonwa.gov/permitcenter | planningcustomerservice@rentonwa.gov | 425-430-7294 10/6/2022 Page 1 of 3
CITY OF RENTON Ι PERMIT CENTER
TREE RETENTION AND CREDIT WORKSHEET
TREE RETENTION REQUIREMENTS
A minimum retention of thirty percent (30%) of all significant trees (as defined in RMC 4-11-200) is required on site. Please
complete the form below to verify compliance with minimum tree retention requirements.
· Identify total number of trees 6-inch caliper or greater (or alder or
cottonwood trees 8-inch caliper or greater) on site: 18 Trees
· Deductions – Certain trees are excluded from the retention calculation:
o Trees that are high-risk, as defined in RMC 4-11-200: 0 Trees
o Trees within existing and proposed public right-of-way: 12 Trees
o Trees within wetlands, streams, very high landslide hazards,
protected slopes, and associated buffers: 0 Trees
· Total remaining trees after deductions: 6 Trees
· Required tree retention (30%): 2 Trees Required
· Identify number of trees proposed for retention: 6 Trees Proposed
· Identify number of trees requested for replacement in lieu of retention
(skip page 3 if no tree replacement is requested): N/A Trees
TREE CREDIT REQUIREMENTS
Tree credit requirements apply at a minimum rate of thirty (30) credits per net acre. Complete the form below to
determine minimum tree credit requirements.
· Gross area of property in square feet: 33,558 Square Feet
· Deductions: Certain areas are excluded from tree credit calculation:
o Existing and proposed public right-of-way: 0 Square Feet
o Wetlands, streams, very high landslide hazards, protected slopes,
and associated buffers: 0 Square Feet
· Total excluded area: 0 Square Feet
· Net land area (after deductions) in square feet: 33,558 Square Feet
· Net land area (after deductions) in acres: 0.77 Acres
· Required tree credits: 23 Tree Credits Required
rentonwa.gov/permitcenter | planningcustomerservice@rentonwa.gov | 425-430-7294 10/6/2022 Page 2 of 3
TREE RETENTION AND CREDIT WORKSHEET
PROPOSED TREE CREDITS
Please complete the table below to calculate the total tree credits proposed for your project. Identify the quantity of trees
for each tree category, after deducting trees within excluded areas, as shown in the previous section.
TREE SIZE TREE CREDITS TREE QUANTITY TOTAL TREE CREDITS
RETAINED TREES
Preserved tree 6 – 9” caliper 4 2 8
Preserved tree 10 – 12” caliper 5 4 20
Preserved tree 12 – 15” caliper 6
Preserved tree 16 – 18” caliper 7
Preserved tree 19 – 21” caliper 8
Preserved tree 22 – 24” caliper 9
Preserved tree 25 – 28” caliper 10
Preserved tree 29 – 32” caliper 11
Preserved tree 33 – 36” caliper 12
Preserved tree 37” caliper and greater 13
NEW TREES
New small species tree (30' or less at maturity) 0.25
New medium species tree (30' to 50' at maturity) 1
New large species tree (50' or more at maturity) 2
TREE CREDITS PROPOSED: 28
rentonwa.gov/permitcenter | planningcustomerservice@rentonwa.gov | 425-430-7294 10/6/2022 Page 3 of 3
TREE RETENTION AND CREDIT WORKSHEET
TREE REPLACEMENT JUSTIFICATION
Replacement may be authorized as an alternative to 30% retention provided the removal is the minimum necessary to
accomplish the desired purpose and provided the proposal meets one of the following options:
a. There are special circumstances related to the size, shape, topography, location, or surroundings of the subject
property; or
b. The strict application of the code would prevent reasonable use of property; or
c. The strict application of the code would prevent compliance with minimum density requirements of the zone; or
d. The project is a short plat with four (4) or fewer lots.
Please attach a written justification demonstrating compliance with the requirements and criteria as descripted above.
TREE REPLACEMENT QUANTITY
Tree replacement quantity is determined based on the credit value of the trees proposed for removal. Larger, higher
priority trees shall be used for calculation of tree replacement. Identify the quantity of each tree requested to be removed
in lieu of 30% retention, based on tree size. List the identification number of each tree, as indicated in the arborist report.
TREE SIZE TREE CREDITS TREE QUANTITY TREE INDENTIFICATION # TOTAL TREE CREDITS
Tree 37” caliper + 13
Tree 33 – 36” caliper 12
Tree 29 – 32” caliper 11
Tree 25 – 28” caliper 10
Tree 22 – 24” caliper 9
Tree 19 – 21” caliper 8
Tree 16 – 18” caliper 7
Tree 12 – 15” caliper 6
Tree 10 – 12” caliper 5
Tree 6 – 9” caliper 4
REPLACEMENT CREDITS REQUIRED: 0
TREE REPLACEMENT PLANTING
Identify the quantity of proposed new replacement trees (minimum size of 2-inch caliper). The total replacement credits
proposed should be equal to or greater than the replacement credits required, as shown in section 5.
TREE SIZE TREE CREDITS TREE QUANTITY TOTAL TREE CREDITS
New small species tree (30' or less at maturity) 0.25
New medium species tree (30' to 50' at maturity) 1
New large species tree (50' or more at maturity) 2
REPLACEMENT CREDITS PROPOSED: 0